Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
040060lightly pollutedexcellent101excellent
030057lightly pollutedexcellent91excellent
020051lightly pollutedexcellent91excellent
010054lightly pollutedexcellent91excellent
000049lightly pollutedexcellent91excellent
230044lightly pollutedexcellent91excellent
220044lightly pollutedexcellent81excellent
210047lightly pollutedexcellent91excellent
200045lightly pollutedexcellent91excellent
190045lightly pollutedexcellent81excellent
180042lightly pollutedexcellent71excellent
170043lightly pollutedexcellent61excellent
160043lightly pollutedexcellent71excellent
150045lightly pollutedexcellent71excellent
140039lightly pollutedexcellent61excellent
130039lightly pollutedexcellent61excellent
120036goodexcellent51excellent
110040lightly pollutedexcellent51excellent
100036goodexcellent51excellent
090026goodexcellent41excellent
080040lightly pollutedexcellent41excellent
070035goodexcellent41excellent
060035goodexcellent51excellent
050039lightly pollutedexcellent31excellent